Disk drive including a recording surface employing servo zones with banded data zones
US6262857A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1998 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Jun 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive includes a disk having a disk surface, the disk surface having a plurality of tracks arranged in an embedded servo format. The disk surface includes a plurality of radially-extending user-data regions and a plurality of radially-extending servo-data regions. Each user-data region has a plurality of data zones in each of which user data are stored in a plurality of track segments at a data channel frequency particular to that data zone. Each servo-data region has a plurality of servo zones in each of which servo data are stored in a plurality of track segments at a servo channel frequency particular to that servo zone. The servo channel frequency differs from the data channel frequency for at least one track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.